Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 899 · 40 questions

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

1. 1.🛟 Which of these floats on water? (a) a coin (b) an iron nail (c) a glass marble (d) a dry leaf
2. 2.🔍 Which is the odd one out? (a) a coin (b) a metal key (c) a steel spoon (d) a cork
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a towel for spills (c) a tub of water (d) a results table
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a towel for spills (d) yeast
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it turns white (d) it still floats
8. 8.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) run around the tub (d) play near a deep pond
9. 9.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
10. 10.🛟 Which of these floats on water? (a) a glass marble (b) a metal key (c) a pebble (d) a feather
11. 11.True or false: a steel spoon sinks in water. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) a feather (b) a steel spoon (c) a metal key (d) a ball of clay
13. 13.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
14. 14.True or false: an ice cube sinks in water. (a) False (b) True
15. 15.True or false: a feather floats on water. (a) True (b) False
16. 16.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
17. 17.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it dissolves (d) it turns to stone
18. 18.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to splash everyone (d) to hide the corks
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) whether it floats (d) the kind of clay
20. 20.🛟 Which of these sinks in water? (a) a glass marble (b) an empty capped bottle (c) a dry leaf (d) an ice cube
21. 21.True or false: an ice-cream stick sinks in water. (a) True (b) False
22. 22.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
25. 25.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a magnet (d) turmeric powder
27. 27.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
28. 28.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
29. 29.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it floats higher (d) it turns blue
33. 33.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
34. 34.🛟 Which of these floats on water? (a) a pebble (b) an ice cube (c) a glass marble (d) a steel spoon
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a towel for spills (d) a mirror
36. 36.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the shape of the clay (b) whether it floats (c) the kind of clay (d) the amount of clay
38. 38.🔍 Which is the odd one out? (a) a dry leaf (b) a steel spoon (c) a metal key (d) a glass marble
39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) turmeric powder
40. 40.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False

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